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Insider Trading: Affymetrix Inc

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Affymetrix Inc in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Affymetrix Inc since year 2005. Table 2 shows the detailed insider transactions of Affymetrix Inc since 2005. The reporting company's ticker symbol is AFFX. The reporting company's CIK number is 913077.

The total value of stock buying since 2005 is $262,498. The total value of stock sales is $10,549,204. The total value of stock exercises is $5,449,939.


1 year stock price chart,   1 day stock price chart
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Figure 1. Monthly insider transaction values at Affymetrix Inc (AFFX) in the past 24 months. The trade values of insider stock buys, sales, and option exercises are in logarithmic scale as shown on the right axis labels. The detailed monthly and daily insider transactions are listed in the 2 tables below.

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • $2,601k

    $260k

    $26k

    $2k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Affymetrix Inc (AFFX) in the past 24 months. See table 2 for insider transaction details.

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • $29.80

    $22.35

    $14.90

    $7.45



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Affymetrix Inc (AFFX).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-07 20,000 148,598 0 0 0 0
2008-04 10,000 113,900 0 0 0 0
2007-10 0 0 2,250 63,000 0 0
2007-08 0 0 55,464 1,320,390 0 0
2007-07 0 0 10,000 260,000 10,000 193,350
2007-06 0 0 10,000 260,000 10,000 193,350
2007-05 0 0 30,000 784,975 30,000 580,050
2007-04 0 0 19,300 574,008 19,300 373,164
2007-03 0 0 20,000 560,000 10,000 193,350
2007-02 0 0 99,840 2,601,500 119,592 1,837,005
2007-01 0 0 47,021 1,073,433 47,021 684,741
2006-12 0 0 54,721 1,376,754 54,721 844,599
2006-10 0 0 4,500 116,604 0 0
2006-01 0 0 20,000 943,310 20,000 550,330
2005-11 0 0 10,000 486,830 0 0
2004-04 0 0 4,000 128,400 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Affymetrix Inc (AFFX)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-07-30 Fodor Stephen P A (Chairman and CEO) Purchase 20,000 7.43 148,598
2008-04-29 Fodor Stephen P A (Chairman and CEO) Purchase 10,000 11.39 113,900
2007-10-18 Caulfield Barbara A (EVP and General Counsel) Sale 2,250 28.00 63,000
2007-08-28 Loucks Vernon R Jr (Director) Sale 23,332 22.92 533,039
2007-08-08 King Kevin M (EVP & Pres., Life Sciences) Sale 12,000 27.33 327,960
2007-07-09 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.00 260,000
2007-07-09 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-06-15 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.00 260,000
2007-06-15 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-05-24 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.14 261,395
2007-05-24 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-05-23 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.00 260,000
2007-05-23 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-05-01 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.36 263,580
2007-05-01 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-04-02 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 29.87 297,504
2007-04-02 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,349
2007-03-21 Diekman John D Sale 10,000 30.00 300,000
2007-03-02 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.00 260,000
2007-03-02 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2007-02-20 Loucks Vernon R Jr Sale 12,500 27.96 349,533
2007-02-08 Diekman John D Sale 5,000 27.75 138,750
2007-02-07 Caulfield Barbara A (EVP and General Counsel) Sale 20,000 26.00 520,000
2007-02-07 Caulfield Barbara A (EVP and General Counsel) Option Exercise 20,000 19.34 386,700
2007-02-02 Fodor Stephen P A (Chairman and CEO) Sale 44,720 25.57 1,142,811
2007-02-02 Fodor Stephen P A (Chairman and CEO) Option Exercise 44,720 14.56 651,233
2007-02-01 Diekman John D Option Exercise 37,252 14.56 542,482
2007-01-03 Fodor Stephen P A (Chairman and CEO) Sale 44,721 22.87 1,020,740
2007-01-03 Fodor Stephen P A (Chairman and CEO) Option Exercise 44,721 14.56 651,248
2006-12-12 Caulfield Barbara A (EVP and General Counsel) Sale 10,000 26.00 260,000
2006-12-12 Caulfield Barbara A (EVP and General Counsel) Option Exercise 10,000 19.34 193,350
2006-12-05 Fodor Stephen P A (Chairman and CEO) Sale 44,721 24.97 1,116,754
2006-12-05 Fodor Stephen P A (Chairman and CEO) Option Exercise 44,721 14.56 651,249
2006-10-30 Loucks Vernon R Jr Sale 4,500 25.91 116,604
2006-01-05 Schiffman Gregory T (EVP & Chief Financia) Sale 10,000 46.90 468,990
2006-01-05 Schiffman Gregory T (EVP & Chief Financia) Option Exercise 10,000 34.94 349,380
2006-01-03 Siegel Susan E (President) Sale 5,000 47.43 237,160
2006-01-03 Siegel Susan E (President) Option Exercise 5,000 20.86 104,275
2006-01-03 Caulfield Barbara A (EVP and General Coun) Sale 5,000 47.43 237,160
2006-01-03 Caulfield Barbara A (EVP and General Coun) Option Exercise 5,000 19.34 96,675
2005-11-16 Siegel Susan E (President) Sale 10,000 48.68 486,830
2004-04-28 Berg Paul Sale 4,000 32.10 128,400

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Affymetrix Inc (symbol AFFX, CIK number 913077) see the Securities and Exchange Commission (SEC) website.

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